Varnish-drying room.



C. L. LlBDBLAD. VARNISH DRYING ROOM. APPLICATION FILED NOV. 4, 1912.

LIQQ EBQ Patented July 21, 19141 4 SHEETSSHEET l.

5% lwue/wtoz I G. L. LIEDBLAD. VARNISH DRYING ROOM.

APPLIOATIOR TILED NOV. 4, 1912.

Patented July 21, 1914:.

4 SHBETSSHEET 2.

C. L. LIEDBLAD.

VARNISH DRYING ROOM.

APPLICATION FILED NOV. 4, 1912.

Patented July 21, 1914.

4 SHEETS-SHEET 3.

ahvemtoz M WM G. L. LIEDBLAD.

VARNISH DRYING ROOM.

APPLIOATION FILED NOV. 4, 1912.

LW362 Patented July 21, 1914.

4 SHEETS-SHEET 4.

CARL L. ninnetnp, or :rnmnsrown, new YORK.

VARNISH-DRYING ROOM.

To all whom it may concern Be it known that I, CARL L. LIEDBLAD, a

citizen of the United States, residing at the city of Jamestown, in the county of Chantauqua and State of New York, have invented certain new and useful Improvements in Varnish-Drying Rooms, of which the following, taken in connection with the ac-:

of the apartment will be the subject of a separate Letters Patent; and .the object of the improvement is, first, to provide an.

apartment with cans in one end and with heating pipes and steam jets and adjustable shutters before said fans whereby the heated or steam laden atmosphere may be circulated in all parts of the apartment; second,

to provide return pipes from the opposite end of the apartment to the boxes containing said fans whereby the heated air may be re-circulated; and third, to provide a fan and damper controlled opening from said apartment to the outer atmosphere whereby the outer air may be injected into the apartment or the apartment emptied of its heated air by the reverse movement of he fan in said opening; and the invention consists in the arrangement and. combination of the parts as shown in this specification and the accompanying drawings and pointed out in the claims.

In the drawings, Figure 1 is a vertical lengthwise sectional view of the apartment, the central portion of the apartment being broken hway. Fig. 2 is a sectional view at line X X in Fig. 1, showing an elevation of the heating pipes, steam jets and adjustable shutters in front of the fans, the position of the fans being shown in dotted line circles. Fig. 3 is a sectional view at line Y Y in Fig. 1 showing the arrangement of the fans and heating apparatus and shutters in one end of the apartment. Fig. 4 is an elevation of a portion of the end of the heating apartment showing the preferred arrangement of the fan boxes, the return pipes thereto and the remainder of the end wall being broken away. Fig. 5 isvan elevation of a portion of the opposite ,end of the apartment showing the opposite ends of the return pipes withtheir enlarged open ended receivers and a portion of the wall of the Specification of Letters Patent.

Patented July 211, ram.

Application filed November 4, 1912. Serial 1110. 729,343.

apartment with the thermometer and hydrometer thereon for gaging the temperature and humidity of the apartment.

Like numerals of reference refer to corresponding parts in the several'views.

The numeral 10 designates the outer wall of the apartment, and the numeral .11 designates the side walls, and the numeral 12 the inner wall of the apartment, and the numeral 13 the floor of the apartment.

A heating chamber 141 is arranged adjacent to the main apartment or room .15, being preferably divided therefrom by suitable partitions 16, which consist mainly of the shutter controlled openings 17, which openings are preferably filled by a plurality of series of the adjustable shutters or slats 18. The slats 18 are preferably arranged in difi'erent series, each series being connected together by a suitable rod so that the different series may be turned in different directions to thereby deflect the atmosphere to different portions of the apartment.

The heating pipes 19 are preferably arranged in series, the different sections being placed adjacent the adjustable slats 18 in the chamber 14, and are preferably held in position by means of cross pipes 20 and 21 each side of the heavy series of steam pipes, suitable controlling valves 22 and 23 being provided for each of the difi'erent series of pipes so that the complete control of the temperature may be attained.

In order to control the humidity of the atmosphere of the apartment 15, steam jets Qetare provided which consist of a suitable valve 25 and a pipe 26 having minute holes therein for steam vents, the pipe 26 preferably extending across the series of steam pipes so that the steam may be circulated in the atmosphere of the apartment 15.

The fans 27 are placed in boxes 28 on the outer wall 10 of the chamber .14 and at a height corresponding to the steam jets 26 and about midway of the height of the steam lated by the fans 27 and deflected to all tained by means of pipes 29 which have an inverted hopper shaped receiver 30 on their lower ends to receive the atmosphere therethrough, the pipes 29 extend from the end 12 of the apartment 15 to the boxes 28, and have suitable dampers 31 therein.

It is now apparent that any desired temperature for the apartment 15 may be attained by means of the steam pipes 19 and that the heated atmosphere may be deflected to all parts of the apartment 15 and continually circulated therethrough and be driven against the farther wall 12 and that a continual suction will be attained by the fans 27 through the open mouths 32 of the enlarged ends 30 of the pipes 29, and that this suction of the air by the fans 27 will cause the atmosphere to be drawn through the pipes 29 back to the fans 27 to be forced out again into circulation through the apartment, and passing through the steam pipes 19, it will again be reheated thereby holding an even temperature. When only a slight circulation is desired in the apartment 15 the dampers 31 may be closed and the fans 27 given a slow movement thereby attaining a gentle circulation of the atmoshere. p In order to dry varnish perfectly the outer surface of the varnish must be kept open so that it will dry from the bottom or from the layer of the varnish adjacent the varnished article. In order to keep the pores of the varnish open a certain degree of humidity must be maintained in the atmosphere. After this first step in the varnish drying process the outer layers of the varnish may be hardened without the need of humidity, that is, in a dry heated atmosphere. Accordingly, when the freshly varnished articles are first placed within the apartment 15 the desired degree of humidity is attained by means of the steam jets 26, the steam being turned on by the valves 25 so that the steam is carried into the heated atmosphere of the apartment and the desired degree of humidity attained. As soon as the said inner layers of the varnish are hardened the steam jets are cut off and the outer layers of the varnish are hardened by the circulation of the dry heated atmosphere.

In order that fresh air may be injected into the apartment an opening 33 is provided through the outer wall 10 and a fan 34 is provided in said opening, which fan 34 may be run in opposite di ections to either draw in the outside air or to Withdraw the air from the apartment 15. A damper 35 is provided for the opening 33 so that it may be. entirely closed except when it is needed to freshen the air within the apartment or to withdraw the heated or humid atmosphere from the apartment.

The entrances to the chamber 14 are preferably made with vestibules 36 and double doors 37 so that admission may be gained to the chamber 14 without changing the temperature of the apartment 15. The thermometer 38 and hydrometer 39 are preferably set into the wall of the apartment 15 so that they may be observed from either within or without the apartment.

The standards 4.0 support the pans 4:1 on their upper endsin the lower portion of the space in front of the fans and between the fans and the steam pipes and shutters. pans 41 may be used for different preparations which it is desired to circulate through the apartment 15, as for example, in fuming oak and other Woods, the fuming prepa-.

ration is placed in the pans 41 and will be circulated by the fans through the entire apartment and the re-circulation may be continued as long as desired.

The opening 17 and the deflectors 18, also the open mouths 32 of the enlarged ends 30 of pipes 29, preferably extend to the floor 13, so that the heat will be drawn to the floor The V of the apartment and thereby circulate the heated atmosphere thoroughly in all parts of the drying room.

I claim as new 1. In a device of the class described, a drying room, a heating chamber'connected to said drying room by shutter. controlled openings, means for introducing heat into said heating chamber, a fan connected to said heat-ing chamber to force the heated atmosphere into said drying room through said shutter controlled openings, and means for returning said heated atmosphere from said drying room to said fan and into said heating chamber to be recirculated thereby in said drying room.

2. In a device of the class described, a

drying room, a heating chamber having openings connecting to said drying room,

shutters in said openings between said heat-- ing chamber and drying room to deflect the heated atmosphere to different portions of the drying room, means for introducing'heat into said heating chamber, a fan in a fan box connected to said heating chamber to force the geated atmosphere through said shutters in 0 said drying room, and means for returning the heated atmosphere to said fan box to be again forced outtherefrom into said drying room.

3. In a device of the class described, a drying room,;a heating chamber having shutter controlled openings connectin to said dryingroom to deflect the heate at mosphere to the difierent parts of said drying room, means for introducing heat into said .heating chamber, a box in said heating chamber having an opening therein facing toward said drying room, a fan in said opening to force the heat from said heating chamber into said dr ing room, pipe connection between the arther end of said drying room from said heating chamber and said box containing said fan, said pipe having an open end to draw in the heated atmosphere by said fan and carry the same back to said box to be again driven into said drying room, substantially as and for the purpose specified.

4. In a device of the class described, a drying room, a heating chamber having openings connecting to said drying room,

movable shutters in said openings between said heating chamber and drying room to deflect the heated atmosphere to different portions of said drying room, a series of heating pipes before said openings between said heating chamber and drying room, a

' fan box in said heating chamber having an opening thereln facing toward said heating pipes and shutters, an air pipe having an open end at the farther end of said drying room and connected to said fan box, and a fan in said opening in said fan box to force the heated air from said pipes through said shutters and drying room and to draw said heated air back through said air pipe to re-circulat-e the same.

5. In a device of the class described, a drying room, a heating chamber having openings connecting to said drying room, heating pipes in said heating chamber, a large pipe having an open end at the farther end of said drying room from said heating chamber and extending into said heating chamber, a fan in the heating chamber end of said large pipe to drive the heated atmosphere through said drying room and draw it back through said large pipe to re-circulate the same, said heating chamber having a .fan controlled opening to the outer atmosphere to introduce cool air or empty the air out of said heating chamber and drying room, substantially as and for the purpose specified.

In testimony whereof I have aflixed my signature in the presence of two Witnesses.

CARL L. LIEDBLAD.

Witnesses H. A. SANDBERG, ARTHUR O. MORSE. 

